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Google Publisher Tag adoption & performance trends

2 quarters of aggregate data

Unique domains per quarter

Google Publisher Tag -- Unique domains per quarterGoogle Publisher Tag -- Unique domains per quarter094.6189.2283.8378.4Q2 '26Q3 '26

Median composite score

Google Publisher Tag -- Median composite scoreGoogle Publisher Tag -- Median composite score0255075100Q2 '26Q3 '26

Median Lighthouse performance

Google Publisher Tag -- Median Lighthouse performanceGoogle Publisher Tag -- Median Lighthouse performance0255075100Q2 '26Q3 '26

Median Lighthouse accessibility

Google Publisher Tag -- Median Lighthouse accessibilityGoogle Publisher Tag -- Median Lighthouse accessibility0255075100Q2 '26Q3 '26

How this is calculated

Each point is the median across all public Google Publisher Tag audits completed that quarter. Quarters with fewer than 3 audits are skipped.

Learn more about our methodology →

Raw data

QuarterUnique domainsCompositePerformanceAccessibility
Q2 '26344713287
Q3 '264794183